I am currently in the process of trying to learn Koine Greek on my own. I have been at it for about 10 months and thus far I have worked through Black's intro Grammar and workbook and am now starting on Wallace's Beyond the Basics and workbook. He recommends diagramming sentences, and I have had absolutely no luck in finding a good book that teaches how to go about doing that.

I was wondering if anyone could possibly recommend a good book dealing with diagramming Greek sentences. Seems like the only thing I can find are some relatively superficial treatments pertaining to "phrase diagramming, " but I am in need of a deeper work on how to break down and diagram each part of the sentences. Any help and/or recommendations are greatly appreciated. Thank you in advance!